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Simplifying 7 + 2x = 2(x + -1) + 4 Reorder the terms: 7 + 2x = 2(-1 + x) + 4 7 + 2x = (-1 * 2 + x * 2) + 4 7 + 2x = (-2 + 2x) + 4 Reorder the terms: 7 + 2x = -2 + 4 + 2x Combine like terms: -2 + 4 = 2 7 + 2x = 2 + 2x Add '-2x' to each side of the equation. 7 + 2x + -2x = 2 + 2x + -2x Combine like terms: 2x + -2x = 0 7 + 0 = 2 + 2x + -2x 7 = 2 + 2x + -2x Combine like terms: 2x + -2x = 0 7 = 2 + 0 7 = 2 Solving 7 = 2 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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